Stone-cutting machine.



PATENTED AUG. 20, 1907.

A.-F. JONES. STONE CUTTING MACHINE.

APPLICATION FILED MAY 2a, 1906.

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mfssmsm. I PATENTED AUG. 20, 1907.

' A. P. JONES.

STONE CUTTING MACHINE.

APPLICATION FILED MAY 25. 1906.

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wi/izesdesf J1me)? Z027 ALBERT F. JONES, OF SALEM,

MASSACHUSETTS.

STONE-CUTTING MACHINE.

To all whom it may concern.-

Be it known that I, ALBERT F. JONES, of Salem, county of Essex, State ofMassachusetts, have invented an Improvement in Stone-Cutting Machines,of which the following description, in connection with the accompanyingdrawings, is a specification, like characters on the drawingsrepresenting like parts.

This invention relates to stone cutting machines, and

erating upon the stone, hold the stone so firmly, during the entireoperation of the tools, as to preclude the possibility of even theslightest movement thereof. Also to provide means for holding twostones, so that while the machine is operating upon one stone, the otherstone may be removed and another substituted for it. I

Figure 1 shows in front elevation a stone cutting machine embodying thisinvention. Fig. 2 is a plan view of the means for holding the stone orstones. Fig. 3 is a detail of one of the clamping-devices for thestoneholder.

The stone-holder which supports the stone while it is being operatedupon, sake of illustrating my invention comprises essentially an uprightangularly formed abutment for the stone, and clamping-devices by whichthe stone is held in firm engagement with said abutment, and also meansfor holding the stone at different elevations.

My invention, as herein shown, includes two such stone-holders Theabutment or rest for the stone, which is preferformed, consists of anupright side abutabutment. An abutment consists of two upright channeliron posts m, supported at their lower ends by foot pieces m, orotherwise held in fixed position, and horizontal channel iron bars mbolted to said upright posts m. Two horizontal bars m are herein shown,yet any other number may be employed. Along the inside of each bar m aflanged rail m is secured. Several vertical strips m of planking areplaced against the flanged rails m which are supported at their lowerends by foot pieces m or otherwise. The upright side abutment thusconstructed is made long enough to serve as the side wall for bothstone-holders, hence at a point substantially midway its length twoupright end abutments are provided, which are disposed at right anglesto said side abutment, and which are connected therewith.

The two end abutments are made alike, or substantially so, and eachconsists of any desired number of up- Speeifieation of Letters Patent.Application filed May 25, 1906.

. right channel iron posts m Patented Aug. 20, 1907. SerialNo. 318,609-

two being herein shown, and any desired number of horizontal channeliron bars m, two being herein shown, which are secured to said posts mAlong the inside of each horizontal bar m a flanged rail m is secured,which are constructed substantially the same as the flanged rails m Thehorizontal bars m are connected at one end with the bars m by plates mor any other means may be employed for connecting the end abutments withthe side abutments.

Several vertical strips m of planking are placed against the flangedrails 172 which are suitably supported.

The stones, which are supported upon jack screws I: of any suitabledescription and thereby held at any desirable elevation, are held firmlyagainst the abutlnent by clamping-devices. The clamping-devices arearranged in sets, and herein each stone-holder is provided with at leasttwo sets of clamping-devices, disposed at different elevations, altonghany other number may be employed, and provision made for such Theseveral sets of clamping-devices are made alike, or substantially so,hence one only will be described.

m represents an angularly formed corner-engaging block, adapted toengage a corner of the stone, opposite the corner which enters theangularly formed abutment, and said corner-block has a pair ofrod-engaging clamps m disposed at right angles to each other. One ofsaid clamps m" engages one end of a horizontally disposed rod m, theother end of which rod is loosely connected to the eye of a screwm whichpasses through a boss on provided on one end of a plate m and isadjust-ably held attached thereto by a nut m The plate m has at itsopposite or outer end a pair of oppositely disposed hooks m, whichengage the flanged portion of any one of the horizontal rails on theside abutment. The other clamp m on the corner block engages one end ofa horizontally disposed rod m, the other end of which rod is looselyconnected to the eye of a screw M, which passes through a boss mprovided on one end of a plate M and is adjustably held attached theretoby a nut m The plate 122? has at its opposite or outer end a pair ofoppositely disposed hooks m, which engage the flanged portion of any oneof the horizontal rails on the end abutment.

The clamps m m when loosened, will permit the rods m, m to be freelymoved along to be lengthened or shortened so that the cornerblock may bebrought into engagement with the corner of stones of different sizes;then said clamps will be tightened, and then by turning the nuts m at,said corner-block will be drawn hard against the stone, so as to fn'mlyhold the stone in the corner of the angnlarly formed abutment.

The stone having been placed in one of the stone'- holders, and theseveral sets of clamping-devices operated to securely hold it inposition, the tool or tools are set to work upon the stone, and whilethe stone is being cut the workmen can remove a stone from the otherstone-holder and substitute another therefor.

The means herein shown for holding the stone is very effective, and inpractice effective means for holding the stone is very important, forthe reason that if the stone should move or should be moved by the toolor tools, ever so little after work upon it has begun, the work willhave to be done over again.

The tool holder a and tool or tools held by it and tool carrying frame bare all of any suitable description and the tool carrying frame ismounted on a carriage having rolls p adapted to travel on horizontaltracks supported on the main frame and said main frame has upright endsupports B provided with rollers s adapted to travel on tracks 3. p

The tool or tool holder and means for operating the tool herein shownare the same as shown in my application 189,005, filed January 14, 1904,and the main supporting frame is the same as shown in my application197,655, filed March 11th, 1904, but the aforesaid parts are hereinshown merely ior the sake of illustrating my invention.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is 1. In a stone cutting machine, a stoneholder consisting of stationary angular-1y arranged abntments for thestone, a corner block and longitudinally adjustable conneclions betweensaid block and said abntments, substantially as described. 1

2. In a stone cutting machine, a stone-holder consisting of two uprightstationary abutments disposed at right angles to each other, andconnected together, and adjustable clamping-devices connected therewithat different points which embrace the stone, substantially as described.

3. In a, stone cutting machine, a stone-holder consisting of stationaryangularly arranged abutments for the stone, an angular-1y formedcorner-block and connections .between said corner-block and saidabutment, substantially as described.

I. In a stone cutting machine, a stone holder consisting of stationaryabutments for the stone arranged at right angles to each other andlongitudinally adjustable elampingdevices connected therewith atdifferent points, which embrace the stone, and means for holding thestone in said stone-holder at diiterent elevations, substantially asdescribed. I

5. In a stone cutting machine, a stone-holder consisting of stationaryabutments for the stone having flanged clampengaging rails and clampingdevices which engage said rails and which embrace the stone,substantially as described.

6. In a stone cutting machine, a stone-holder consisting of stationaryangular-1y arranged abutments for the stone having flanged rails, acorner-block and connections between said rails and the corner-blockwhich embrace the stone, substantially as described.

7. In a stone cutting machine, a two-compartment stone holder, eachcompartment having two abutments arranged at right angles to each other,adjustable means connected to the abutments 01 each compartment whichembrace the stone therein, and independent means or holding said stoneat dilferent elevations, substantially as described.

S. In a stone cutting machine, a two-compartment stoneholder consistingof stationary side abutments and intermediate end abutments andclamping-devices embracing the stones connecting said end abutments withthe side abutments at remote points, substantially as described.

1). in a stone cutting machine, a two-compartment stoneholder consistingof stationary side abutments and intermediate end abutments, eachabutment having flanged rails, corner-blocks for the stones, and meansfor connecting the corner-blocks with said rails, substantially asdescribed.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

ALBERT F. JONES.

Witnesses B. .T. NOYFS, H. B. DAVIS.

